Process of purifying gas.



No. 7|6,803. Patenten Dec. 23,. i902.

E. ZAHM & J. A. JUST.

.Princess 0F Pmrvms GAS.

Application filed Apr. 10, 1900. Renewed July 29,1Q02,

V/ir V 2,-: 33

(No Model.)

Y k y. u 3 X04@ I7 k Q9- r T07 WTNESSES EDWARD` ZAHM AND'JonN A. JUST, onsYnAcusn, NEW Yoan.

PROCESS oFf-PumFYmG-GAS.

SPECIFICATION forming para of Letters raient No. 716,803, dared December 2e, 1902. Applieationled April l()x 1900.` Renewed July 29, 1902l Serial No. 117,456. (No specimens.)

To a/ZZ whom it may concern:

Be it known that We, EDWARD ZAHM and JOHN A. JUST, of Syracuse, in the county Vof Onondaga, in the State of New York, have invented a new and useful Process of. Purifying Gases, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exactdescription.

Our inventlon is a new process for purifying and washing gases 5 audit consists, essentially, in forcing the gas through a porous medium immersed in a purifying liquid, by which the gas is finely broken up and brought into intimate contact with the purifying liquid.

For the purpose of carrying out our new process We have illustrated and herein described a simple and convenient form of apparatus; but as it is our intention to make it the subject-matter of a separate application no claim will be made to it in the present application.

Other forms of apparatus may be devi-sed for carrying out the process; but we prefer the one illustrated in the accompanying drawings, in which- Figure lis an elevation of the mechanism, and Fig. H the same in vertical section.

In the figures, A indicates the vessel containing some suitable antiseptic or purifying solution. This vessel may be conveniently made of a glass cylinder l, metallic cap 2, and base 3, the latter being provided with a socket 4, in which is retained the porous medium or core C by clamping-rods 5 and plate 6, '7 being the inlet for the gas from pipe9, provided with valve lO.

The porous medium may be made of any suitable material and form, its essential feature being a greater or less degree of porosity, so that the Vgas is forced through fine interstices to be finely subdivided, thus presenting the greatest surface for action. It is preferablymade of some earthenware material, which best resists the action of chemical reagents, heat, bc. As here shown, this medium may be molded in the forni of a core of elongated cylindrical form With a hollow center l1 in continuation of the inlet, so that the thickness of material through which the gas passes is substantially equal at all points. This core may be formed of granular material contained in a suitable case, but such form is not so convenient.

. le is a draw-oif in the base, and l5 supplycock in cap 2, closing opening for introduction of the cleansing solution.

17 is the air-outlet, to which is litted bushing 18 and outlet-pipe 19 for conducting the ,cleansed air to any suitable reservoir or place 'ically controlled by valve E and iloat F.

32 is the air-outlet pipe, 33 bushing therefor, ande an air-pressure gage which may be used, if'desired.

Heretofore gases have been washed by delivering them under pressure into a liquid, but imperfectly. The gas passes through in comparatively large bubbles, it is not'nally broken up to be brought in intimate contact with 'the purifyingliquid, and the result is essentially different from that of our process, where the perfect purifying, washing, or sterilizing is effected.

In our invention the purifying liquid also tends to penetrate the core to some extent, so that the gas is mixed and churned up with it within the mass of the core itself, and there is an intimate mixture of the gas with the liquid both Within and Without the porous medium. After the gas has thus been purified it may be forced througha second core, arranged in a second vessel ycontaining pure water, to remove all traces of the antiseptic solution itself.

. We do not limit ourselves to the number of cores or other porous mediums through which it may be passed. Usually one or two will be sufficient, but the gas may be forced through several in diiferent liquids to remove different impurities.

The mechanism hereshown is simple and convenient, but we do not limit ourselves to this form or arrangement of parts. These may be much varied to suit varying condi- IOO tions. The porous medium may be in different forms or divided into two or more bodies in each vessel, the gas may be introduced through the top, sides, &c., the essential fea- 1 ture being that all the gas must pass through ing gases, which consists in forcing the gas through a chambered porous medium, said medium being submerged in an antiseptic or purifying liquid, whereby an intimate mixture of the gas with the liquid, both within and without the porous medium, is obtained.

4. The herein-described process of purifying gases,consisting of forcing the gas through a hollow core of porous material submerged in an antiseptic or purifying liquid, whereby the gas is first nely broken up and brought into intimate contact with the liquid.

In testimony whereof we have hereunto signed our names.

EDWARD ZAHM. JOHN A. JUST. Witnesses:

C. C. SCHOENECK, M. T. BRowNELL.

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